Improvement in well-tubes



stent diijliw.

ANDREW J. SHIRLEY. OF PLYMOUTH, INDIANA.

Letters Patent No. 108,301, dated October 11, 1870.

IMPROVEMENT lN WELL-TUBES.

The Schedule referred to in these Letters Patent and making part of thesame To 'all whom it may concern Be it knowln that I, ANDREW J. Summer,ot'Plymouth, in the county ot' Marshall and in the State ot' Indiana,have invented certain new and useful Iniprovemeuts in Tell-Tubes; and dohereby declare that the following is a full, clear, and exactdeseription thereof, reference being had to the aeooinpanying drawing`and to the letters of reference marked thereon, making'a part of' thisspecification.

The nature of my invention consists in the coustrnetion and arrangementof a well-tube, with an improved sand-screen or tilt-er, as will behereinafter .fully set forth.

In order to enable others skilled in the art to which my inventionappertaius to make and use the saine, I will now proceed to describe itsconstruction and operation, referring to the annexed drawing, in which-Figure l is a side view, and

Figure 2, avertical section of my well-tube.

Figure 3 is a side view of the tube, with the wire wrapping removed.

A represents the tnbe,'of any suitable dimensions, in the lower end ofwhich the point B is inserted, and secured by means of a pin, (l,passing through, as shown in tig. 0. l

The point B has a shoulder orvoffset at e, upon which is the tube A, thepart of the point above said shoulder being'iuserted into the tube, andthe pin l passing through said part and the tube.

At the upper end 0f the tube A are screw-threads, to i'orm suitableoonneetion with the pipe above.

rlhe tube A is corrugated or grooved longitudinally with grooves (t a, asuitable distance apart, as shown in iig. 3.

In the grooves or eorrugations au are holes or perfor-ations li ithrough the tube.

On the outside of the tube A are also formed screwthreads b I),extending the entire distance over and above the eorrugations (t andperforations i.

In these screw-threads is wrapped a wire, C, all around, as shown iniig. 1, forming a sand-screen 0r filter.

Having thus fully described 1n y invention,

\Vhat I claim as new, and desire to seeure by Letter Patent, is

The arrangement of the pipe A, provided with longitudinal grooves a a,peri'orat-ions fi'z'-, and screwthreads b b, the point B, with shoulderor offset e, the pin (l, and wire C, all substantially as shown anddescribed.

In testimony that I claim the foregoing, I have hereunto set my handthis 12thl day of April, 1870.

W'itnesses: ANDREV J SHIRLEY.

A. B. OAPRON, A W. M. KENDALL.

